Zobrazeno 1 - 10
of 75
pro vyhledávání: '"W W, Thatcher"'
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract Objective of experiment was to determine whether oxidative stress (OS) and inflammation altered embryonic loss in dairy cows. Blood samples were collected at days 0, 16, 32 and 60 after timed (AI) from 200 Holstein cows to determine embryoni
Externí odkaz:
https://doaj.org/article/fd3cbd3a7a324d8ea8246fa91bbf8e7a
Autor:
W. W. Thatcher
Publikováno v:
Journal of Agricultural and Marine Sciences, Vol 1, Iss 0, Pp 95-101 (1996)
When projecting livestock environmental prospects for the 1990's. it is critical to recognize the multidimensional nature of managing livestock species under hot environments. This paper identifies potential critical physiological windows during the
Externí odkaz:
https://doaj.org/article/cfbf10888a1a440a9400f05b2cb9f465
Autor:
F R, Lopes, L M, Silva, R, Zimpel, A K, Munhoz, A, Vieira-Neto, M H C, Pereira, M, Poindexter, M L, Gambarini, W W, Thatcher, J L M, Vasconcelos, J E P, Santos
Publikováno v:
Theriogenology. 153
Objectives were to determine the effects of a dose of PGF
Autor:
R L A, Cerri, R C, Chebel, F, Rivera, C D, Narciso, R A, Oliveira, W W, Thatcher, J E P, Santos
Publikováno v:
Journal of Dairy Science. 94:3342-3351
Objectives were to evaluate the effects of differing progesterone concentrations during follicle development on follicular dynamics, fertilization, and embryo quality. Lactating Holstein cows (n=154) were assigned randomly to 1 of 2 treatments. Cows
Autor:
J E P, Santos, R S, Bisinotto, E S, Ribeiro, F S, Lima, L F, Greco, C R, Staples, W W, Thatcher
Publikováno v:
Reproduction in Domestic Ruminants. 7:385-401
The establishment and maintenance of pregnancy in lactating dairy cows is a complex biological event that is influenced by a multitude of factors, from the reproductive biology of the cow to managerial aspects of the dairy farm. It is often mentioned
Publikováno v:
Reproduction in domestic animals = Zuchthygiene. 45
Increasing reproductive performance of post-partum lactating dairy cows is a multi-factorial challenge involving disciplines of production medicine, nutrition, physiology and herd management. Systems of programmed timed insemination have been fine-tu
Publikováno v:
Journal of animal science. 90(1)
This study was designed to characterize development of the ovine conceptus throughout gestation to establish the temporal relationships in metabolites, electrolytes, fluid volumes within the placenta, and hormonal changes with fetal growth. Length an
Publikováno v:
Journal of Endocrinology. 133:175-182
Experiments were performed to determine the mechanism by which recombinant bovine interferon-αI1 (rbIFN-α) causes an acute reduction in plasma concentrations of progesterone. In experiment 1, administration of a prostaglandin synthesis inhibitor bl
Publikováno v:
Journal of animal science. 85(10)
Two experiments were conducted to compare the performance and physiological responses of forage-fed beef females supplemented with either a molasses-based (ML) or a citrus pulp-based (CT) supplement. In Exp. 1, BW gain, reproductive performance, and
Autor:
C E, Alosilla, L R, McDowell, N S, Wilkinson, C R, Staples, W W, Thatcher, F G, Martin, M, Blair
Publikováno v:
Journal of animal science. 85(5)
An experiment was conducted to evaluate the bioavailability of 5 sources of vitamin A. It was hypothesized that some vitamin A products have protective coatings that are more resistant than others to rumen destruction and that such protection would r